Updated composer dependencies, corrected application NS, and added beberlei/assert to make validation of variables easier
Tested: added first tests to verify the Person
Implemented: Helper functions for the test suite to get a common configuration for an Event and a fake object of the Event
Merge branch 'redoTests' of github.com:liip/presence into redoTests
Tested: added reminder for two other classes to be tested
Tested: added more tests for the Person class